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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
CD TEST MODE
1. How to activate CD test mode 1) Remove the resistor R907 (100k�) from the MAIN C.B, and add R999C 22k� or chip resistor to the MAIN C.B. (Fig. 1) 2) Connect +12V to ACC/BACK UP and � (minus) to the ground of the CONNECTOR ASSY. 3) Turn on the power. 4) Test mode will be activated and all LCD display will light up. (Fig. 2) 3. CD test mode functions Mode Start Mode Operation Key LCD Display All LCD light up DISC LOADING Operation Contents Activate test mode � Loading � All servo off � Laser on � VCC on � Continual focus search � Check APC circuit Search Mode RANDOM (The pickup lens repeat the � Laser current measurement full-swing) � Check focus error waveform * NOTE 1 � TOC reading � Normal playback Play Mode Fig. 1 REPEAT 1 � Display Track No. and Play time � Display Level/Ing. � Same operation as search mode if TOC cannot be read � SLED servo Traverse Mode Stop Mode INT REPEAT � Display Track No. and Play time All LCD light up Playback pause status Wait status Tracking servo off � All servo off � Laser on/off � Pickup moves to outer track Sled Mode All LCD light up � Pickup moves to inner track � Check mechanism operation � Sled servo � Tracking servo � CLV servo � Focus servo
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UNLOADING DISC CHUCKING
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� Do not insert the CD disc when checking the search mode. � Press the REPEAT key to release each mode. Fig. 2 2. How to cancel CD test mode 1) Turn off +12V to ACC/BACK UP 2) Solder back the resistor R907 (100k�) and remove the R999 (22k�) from the MAIN C.B 3) Disconnect +12V from ACC/BACK UP and � (minus) from the ground of the CONNECTOR ASSY. * NOTE 1 : There is a case that the CD cannot be operated owing to the protection circuit being operated when heat builds up in the driver IC if the focus search is opereated continually for more than 10 minutes. In this case, the power supply should be switched off for 10 minutes until the heat has been reduced and then re-start.
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